Is your keyboard more like a schmorgesboard?

I was having a general desk tidy this morning. I upturned my keyboard and gave it a few sharp raps on the desk. Crivens was I shocked at the debris field! Grains of rice, dried flakes of tuna, dehydrated noodles. Eugh I was a bit disgusted. I am a particularly messy eater or does this stuff commonly accumulate over time.